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A clinical trial was undertaken to assess the value of incorporating fluoride released from a commercially available bonding adhesive (Rely-a-Bond) to determine the extent of any protection provided against enamel decalcification. Fifty patients undergoing fixed appliance therapy were included in the trial. Contralateral quadrants were used as controls where no fluoride was present in the adhesive. Enamel decalcification after treatment and bond failure rates during treatment were investigated.

A total of 366 experimental and 371 control teeth were included in the study. The results showed...

A clinical trial was undertaken to assess the value of incorporating fluoride released from a commercially available bonding adhesive (Rely-a-Bond) to determine the extent of any protection provided against enamel decalcification. Fifty patients undergoing fixed appliance therapy were included in the trial. Contralateral quadrants were used as controls where no fluoride was present in the adhesive. Enamel decalcification after treatment and bond failure rates during treatment were investigated.

A total of 366 experimental and 371 control teeth were included in the study. The results showed that 50 per cent of patients and 13.5 per cent of teeth exhibited post-treatment decalcification. The addition of fluoride to the adhesive did not significantly reduce the incidence of enamel decalcification. Bond failure rates were satisfactory for both experimental and control teeth (all under 5 per cent).